[gstreamer-bugs] [Bug 456573] allow dumping pipelines as dot graphs

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gstreamer (core) | Ver: HEAD CVS




------- Comment #18 from Tim-Philipp Müller  2007-10-29 10:53 UTC -------
> What about making the macros simpler:
> 
> GST_DEBUG_BIN_TO_DOT_FILE(GST_BIN(pipeline),GST_DEBUG_GRAPH_SHOW_ALL);
> 
> and passing the base-filename via environment var:
> 
> GST_DEBUG_DUMP_DOT_FILES="/tmp/gst-launch."
> 
> If the envvar is empty - no dumps will be made. If the envvar contains
> something it will create names by appending the timestamp + ".dot".

I think something like that would be a good idea.  Either what you suggested,
or maybe something like:

 - environment variable contains absolute path to directory
   where to dump all the dot files

 - caller passes in some kind of descriptive filename thing/suffix
   like 'totem-error' or 'state-change-ready-to-paused' and
   the function then writes out the pipeline state to a file called:

     $PATH_FOR_DOT_FILES/TIMESTAMP-description-foo.dot

That leaves things nicely sorted by timestamp in a central user-defined
location, and applications like totem don't need to worry about what directory
to drop their stuff in, and you can also get rid of the _with_timestamp()
variant.


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